HK1002730A1 - Process for selectively producing hydrate crystals - Google Patents

Process for selectively producing hydrate crystals

Info

Publication number
HK1002730A1
HK1002730A1 HK98101536A HK98101536A HK1002730A1 HK 1002730 A1 HK1002730 A1 HK 1002730A1 HK 98101536 A HK98101536 A HK 98101536A HK 98101536 A HK98101536 A HK 98101536A HK 1002730 A1 HK1002730 A1 HK 1002730A1
Authority
HK
Hong Kong
Prior art keywords
methyl
selectively producing
hydrate crystals
producing hydrate
benzoxazine
Prior art date
Application number
HK98101536A
Other languages
English (en)
Inventor
Yukio Sato
Atsushi Sato
Tatsuro Sumikawa
Tazuo Uemura
Original Assignee
Daiichi Seiyaku Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daiichi Seiyaku Co filed Critical Daiichi Seiyaku Co
Publication of HK1002730A1 publication Critical patent/HK1002730A1/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D498/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
    • C07D498/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
    • C07D498/06—Peri-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
HK98101536A 1990-03-01 1998-02-27 Process for selectively producing hydrate crystals HK1002730A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5045490 1990-03-01

Publications (1)

Publication Number Publication Date
HK1002730A1 true HK1002730A1 (en) 1998-09-11

Family

ID=12859314

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98101536A HK1002730A1 (en) 1990-03-01 1998-02-27 Process for selectively producing hydrate crystals

Country Status (13)

Country Link
US (1) US5545737A (xx)
EP (1) EP0444678B1 (xx)
KR (1) KR970000045B1 (xx)
AT (1) ATE157666T1 (xx)
DE (1) DE69127485T2 (xx)
ES (1) ES2106739T3 (xx)
GR (1) GR3025276T3 (xx)
HK (1) HK1002730A1 (xx)
IE (1) IE910692A1 (xx)
IN (1) IN172207B (xx)
PT (1) PT96917B (xx)
TW (1) TW208013B (xx)
YU (1) YU48328B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA946853B (en) * 1993-09-10 1995-04-24 Daiichi Seiyaku Co Crystals of antimicrobial compound.
PE20011061A1 (es) 2000-02-01 2001-11-20 Procter & Gamble Cristalizacion selectiva del acido 3-piridil-1-hidroxi-etiliden-1,1-bisfosfonico sodio como el hemipentahidrato o el monohidrato
PE20011065A1 (es) 2000-02-01 2001-11-21 Procter & Gamble Proceso para fabricar bisfosfonatos geminales
ES2272781T5 (es) 2001-10-03 2010-04-06 Teva Pharmaceutical Industries Ltd. Preparacion de levofloxacino hemihidratado.
US7425628B2 (en) 2001-10-03 2008-09-16 Teva Pharmaceutical Industries Ltd. Methods for the purification of levofloxacin
CN1596256A (zh) * 2001-11-29 2005-03-16 特瓦制药工业有限公司 左氧氟沙星的纯化方法
CN1735620A (zh) * 2002-12-16 2006-02-15 兰贝克赛实验室有限公司 纯的左氧氟沙星半水合物和它的制备方法
KR100704641B1 (ko) * 2004-07-21 2007-04-06 주식회사유한양행 고순도의 레보플록사신 제조방법
EP1797101A4 (en) * 2004-09-17 2009-11-11 Matrix Lab Ltd IMPROVED PROCESS FOR THE PREPARATION OF LEVOFLOXACIN HEMIHYDRATE
US20070244318A1 (en) * 2004-11-08 2007-10-18 Rao Davuluri R Process for the Preparation of Levofloxacin Hemihydrate
ES2255871B1 (es) * 2004-12-31 2007-08-16 Quimica Sintetica, S.A. Procedimiento para la obtencion de levofloxacino exento de sales.
CN1321121C (zh) * 2005-04-21 2007-06-13 浙江医药股份有限公司新昌制药厂 左氧氟沙星制备及后处理方法
US7964723B2 (en) * 2008-08-02 2011-06-21 Apeloa-Kangyu And practical process for exclusively producing (S)-9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido-[1,2,3,de][1,4]benzoxazine-6-carboxylic acid hemihydrate
CN101863904A (zh) * 2010-07-08 2010-10-20 浙江东亚药业有限公司 一种高纯度左氧氟沙星半水合物的制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203719C (xx) * 1907-11-02 1908-10-20
JPS5746986A (en) * 1980-09-02 1982-03-17 Dai Ichi Seiyaku Co Ltd Pyrido(1,2,3-de)(1,4)benzoxazine derivative
JPS57131769A (en) * 1981-02-10 1982-08-14 Kissei Pharmaceut Co Ltd 4-(1-imidazolylmethyl)cinnamic acid hydrochloride monohydrate, its preparation and drug containing the same
JPS5843977A (ja) * 1981-09-09 1983-03-14 Dai Ichi Seiyaku Co Ltd ピリドベンズオキサジン誘導体の製法
JPS60226855A (ja) * 1984-04-26 1985-11-12 Nippon Kayaku Co Ltd Ｎ−ベンジルオキシカルボニル−ｌ−スレオニンアミド・１／２水和物およびその製造法
NO166131C (no) * 1985-06-20 1991-06-05 Daiichi Seiyaku Co Analogifremgangsmaate for fremstilling av s(-)-pyridobenzoksazinforbindelser.
ZA864518B (en) * 1985-06-20 1987-03-25 Daiichi Seiyaku Co Optically active pyridobenzoxazine derivatives and intermediates thereof
MY104139A (en) * 1988-08-09 1994-02-28 Daiichi Seiyaku Co Antimicrobial agent for animals
FI82240C (fi) * 1988-10-20 1991-02-11 Huhtamaeki Oy Foerfarande foer framstaellning av farmakologiskt vaerdefullt s-timolol-hemihydrat.
MTP1076B (en) * 1990-01-12 1991-09-30 Ciba Geigy Ag Hemihydrate

Also Published As

Publication number Publication date
KR970000045B1 (ko) 1997-01-04
US5545737A (en) 1996-08-13
YU35491A (sh) 1994-04-05
KR910016748A (ko) 1991-11-05
GR3025276T3 (en) 1998-02-27
IE910692A1 (en) 1991-09-11
TW208013B (xx) 1993-06-21
ATE157666T1 (de) 1997-09-15
ES2106739T3 (es) 1997-11-16
IN172207B (xx) 1993-05-01
EP0444678A1 (en) 1991-09-04
DE69127485D1 (de) 1997-10-09
DE69127485T2 (de) 1998-04-02
EP0444678B1 (en) 1997-09-03
PT96917A (pt) 1991-10-31
PT96917B (pt) 1998-07-31
YU48328B (sh) 1998-05-15

Similar Documents

Publication Publication Date Title
HK1002730A1 (en) Process for selectively producing hydrate crystals
LV10262B (en) Process for producing pharmaceutical compounds
AU556317B2 (en) Photochromic spiro(indoline-2,3:(3h)pyrido(3,2-f) (1,4) benzoxazines)
GR3033727T3 (en) Stable crystalline tetrahydrofolic acid salts
AU2002341991A1 (en) Methods for the purification of levofloxacin
HU911476D0 (en) Process for producing new pyrido(2,3-f) (1,4) thizepines and pyrido(3,2-b) (1,5)benzothiazepines
PL300747A1 (en) Method of obtaining substantially pure clavulanic acid
GR3025394T3 (en) Process for the purifying of waters for human consumption.
GB9515809D0 (en) Process
GB9013845D0 (en) Process
HRP940506B1 (en) Crystals of an antimicrobal compound
GR1000241B (el) Μεθοδος παρασκευης νεων παραγωγων της μορφολινης.
HUT34199A (en) Process for the production of 1,2,3-triazino/4'5':4,5/ thieno/2,3-b/quinoline-4-/3h/-on-derivatives
HU9203698D0 (en) Method for producing crystallic salts of 9,9-alkylene-3,7-diaza-bicyclononane compounds with fumaric aicd
HUT49869A (en) Process for producing 5-chloro-3-chlorosulfonyl-2-thiophenecarboxylic acid esters
HU906357D0 (en) Process for producing 3-aroyl-2-oxindole-1-carboxamide derivatives
CA2057753A1 (en) Procedure for producing the speed reference for a crane motor
DE3662780D1 (en) Process for the manufacture of dense anhydrous sodium carbonate, and dense anhydrous sodium carbonate obtained by this process
CS53688A2 (en) Method of new substituted 3-phenyl-7h-thiazolo/3,2-b//1,2,4/triazine -7-ons production
ES8706328A1 (es) Procedimiento para la obtencion del acido 9-fluor-3-metil-10-(4-metil-1-piperazinil)-7-oxo-2,3-dihidro-7h-pirido(1,2,3-de)-1,4-benzoxacina-6-carboxilico
HUT57779A (en) Process for producing new thiazetoquinoline-3-carboxylic acid derivatives

Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20110227